I want to update my phone to iOS 15

Hello~ Adding on to *Mac Jim ID’s* excellent information. We can’t update your iPhone for you but only point you in the right direction for you to do so. If your iPhone can be updated…click on below and review…

Update your iPhone or iPad - Apple Support

If you are having issues…

If your iPhone or iPad won't update - Apple Support

~Katana-San~

Depends on the phone you have.

If there is an update available you will see it at Settings > General > Software Update.

What happened when you followed the instructions above to tap Settings > General > Software Update?

Did you see a message that "iOS is up to date"?